Introduce a new strucutre, simple_range, to present one contingous
range.
Also, use such structure to define btrfs_reserved_ranges(), which
convert and rollback will use.
Suggested-by: David Sterba <dsterba@suse.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[ split hunks to new file structure ]
Signed-off-by: David Sterba <dsterba@suse.com>
Use one flag field instead of several variables. The change cascades
down to the callchain and modifies several functions.
Signed-off-by: David Sterba <dsterba@suse.com>
Qu Wenruo